i m pujabi and we dont follow this practice. but i think the nature of this tradition is very much close to the concept of rajam (specially in the case of adultery) and we cas take guidance from this practice to make our laws against zina in line with quran and sunnah. current punisment for the adultery as per law is , imprisonement , that is not accordance with the guidelines of shariah.
karo kari is applicable to both sexes, y only female is discussed… ( y no one talk about the 1600 men … as per the discussed report).
where the karo kari is practiced (like interior sindh) have less ratio of extra marital affairs, adultery and prostitution than where it is not practiced like karachi.